<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>File Upload</title>
</head>
<body>
<form action="upload" method="post" enctype="multipart/form-data">
    <input type="file" name="file1">
    <p>
    <input type="file" name="file2">
    <input type="hidden" name="key" value="金字塔key123" /><p/>
    <input type="submit" value="Upload">
</form>
</body>
</html>